roundplaneface.java

基于面向对象的数据库编程

package brgeometry;

/**
 * <p>Title: Broundary Rrepresentaion</p>
 * <p>Description: 圆平面</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: USTC</p>
 * @author unascribed
 * @version 1.0
 */

public class RoundPlaneFace
    extends PlaneFace {

  private RoundCurveEdge roundCurveEdge;

  public RoundPlaneFace(RoundCurveEdge roundCurveEdge) {
    this.roundCurveEdge = roundCurveEdge;
    this.setarea(this.getarea());
  }

  public RoundPlaneFace() {
    this.setarea(this.getarea());
  }

  //属性操作
  public RoundCurveEdge getRoundCurveEdge() {
    return this.roundCurveEdge;
  }

  public void setRoundCurveEdge(RoundCurveEdge roundCurveEdge) {
    this.roundCurveEdge = roundCurveEdge;
  }

  //取得面积，具体实现
  public double getarea() {
    double d=(this.roundCurveEdge).getLength();
    return (d*d)/(4*3.14);
  }

  private void translate() {}

  private void scale() {}

  private void rotate() {}

}